Review on 2pcs Waterproof Ultrasonic Transducer for Repelling Rats and Mosquitoes - ToToT 5120B Piezoelectric Ultrasonic Tweeter by Michael Heidelberg
Just a low power tweeter
This is just a low power tweeter. I'm pretty sure it can emit ultrasounds, but the maximum sensitivity seems to be around 4800Hz. The best thing about them is that they are cheap.
- Easy to install, long range, good performance
- alt
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